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EP1233542A1 - Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne - Google Patents

Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne Download PDF

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Publication number
EP1233542A1
EP1233542A1 EP01103432A EP01103432A EP1233542A1 EP 1233542 A1 EP1233542 A1 EP 1233542A1 EP 01103432 A EP01103432 A EP 01103432A EP 01103432 A EP01103432 A EP 01103432A EP 1233542 A1 EP1233542 A1 EP 1233542A1
Authority
EP
European Patent Office
Prior art keywords
base station
antenna
connections
signal
signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01103432A
Other languages
German (de)
English (en)
Inventor
Leo Dr. Rademacher
Hans Rudolf
Mohamed Shaalan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP01103432A priority Critical patent/EP1233542A1/fr
Priority to CN02104673.5A priority patent/CN1213550C/zh
Priority to US10/074,252 priority patent/US6826415B2/en
Publication of EP1233542A1 publication Critical patent/EP1233542A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084—Equal gain combining, only phase adjustments

Definitions

  • the invention relates to an arrangement for a mobile radio system with a base station with n outputs, whose signals in frequency and amplitude are substantially the same, and with a Antenna device.
  • a signal to be transmitted is transmitted divided within the base station such that the n Connections of the base station in amplitude and frequency essentially have the same signals with different phase positions.
  • Each of these signals is connected to a single antenna adaptive antenna arrangement forwarded and as a transmission signal radiated. Due to the different phases of the individual Signals from the base station and thus the transmission signals the individual antennas form a total radiation diagram the adaptive antenna arrangement, which is a spatial preferred direction has.
  • n of individual antennas of the adaptive antenna arrangement it is possible to view the total radiation diagram of the shape adaptive antenna.
  • the base station By choosing different Carrier frequencies and the phase relationship between the signals the base station it is possible to have several independent from each other Sum radiation diagrams of the adaptive antenna arrangement to generate, each of which has its own spatial Preferred direction. The capacity of a radio network can thereby be increased.
  • an adaptive antenna arrangement is frequency-dependent and typically range from approx. 0.5 to 1.5 m wide and in the range of approx. 0.5 to 1.5 m Height.
  • some preferred antenna locations are for adaptive Antenna arrangements of this size are not suitable.
  • an antenna location is on one historic building, it can often be for aesthetic reasons or monument protection as a location for such large antenna arrangements not be used.
  • Even the statics of the banned in a limited number of existing antenna locations often the use of an adaptive antenna arrangement, for example due to the wind load or the weight of the antenna arrangement.
  • the present invention is therefore based on the object a base station with n connections, whose signals in Frequency and amplitude are essentially the same to one adapt non-adaptive antenna device.
  • the invention includes two preferred arrangements for one Mobile radio system with a base station and with an antenna device.
  • the base station contains a digital signal control device, which in the case of transmission is a digital signal to be transmitted in n essentially the same in amplitude and frequency, however, different digital individual signals in their phase relationship divided and that in the case of reception from the n individual signals a received sum signal with a uniform phase position forms.
  • the base station also contains a device for Signal conversion of these n individual signals from the signal control device in n analog, carrier-frequency radio signals for the n decoupled connections of the base station in the The transmission case.
  • the n analog, carrier-frequency radio signals into the n digital, essentially the same in amplitude and frequency, in their Phase position, however, converted to different individual signals, which then get to the digital signal control device.
  • this base station to a non-adaptive antenna device switch on is between the base station and the antenna device a facility for merging or Distribution arranged, which is the transmission at the n connections the base station occurring radio signals with in essentially the same amplitude and frequency but different Phases linked together in such a way that one on one the connections of the device for merging or Splitting occurring sum signal with uniform phase position arises and as an antenna signal to the antenna device arrives and the antenna signal when received the antenna device, which as a sum signal with a uniform Phase position to the device for summary or Distribution comes into the n in frequency and amplitude essentially same, but different in phase Splits radio signals, which are then to the n connections of the base station reach.
  • the device for merging advantageously includes or splitting a Butler matrix, the n connections for the radio signals of the base station and m connections for the Has antenna signals or sum signals, wherein the sum signal or the antenna signal to only one of the m Connections arrives and all other of the m connections each are terminated with a terminating resistor.
  • a butler matrix the type described here is for example from the "Taschenbuch der Hochfrequenztechnik" by Meinke - Gundlach, fourth edition, published in 1986.
  • the radio signals advantageously point to the base station with each other an essentially linearly increasing phase position on.
  • the base station has n decoupled connections on, to which in frequency, amplitude and phase position essentially same signals arrive.
  • the base station contains a digital signal control device, which in the case of transmission is a digital signal to be transmitted in n in amplitude, frequency and phase position essentially divides the same digital individual signals and those when received a received sum signal from the n individual signals forms with a uniform phase position.
  • the base station contains a device for converting the n individual signals of the signal control device into n analog carrier-frequency radio signals for the n decoupled connections of the base station in the case of transmission.
  • the n analog, carrier-frequency radio signals which reach the n mutually decoupled connections of the base station, are converted into the n digital individual signals and passed to the signal control device.
  • the conversion is done with the help of digital-to-analog converters and devices for modulation and mixing as well as with filters.
  • a facility for merging or dividing arranged, which in the case of transmission is at the n connections of the base station occurring radio signals with essentially same amplitude, frequency and phase relationship with each other linked that one to one of the facility's connectors sum signal occurring for merging or splitting with a uniform phase position and as an antenna signal arrives at the antenna device, and that in the case of reception the antenna signal of the antenna device, which as Sum signal with uniform phase position to the device is summarized or divided into n in frequency, Amplitude and phase position essentially the same radio signals divides and this to the n connections of the base station forwards.
  • the device includes to merge or split at least one Wilkinson-Combiner, for example from the book “RF Design Guide “by Peter Vizmuller, published in 1995, is known.
  • the antenna device only has one connection to which the antenna signal or the sum signal is present.
  • the Antenna device both as a single antenna and as Group antenna can be realized.
  • the invention provides a base station that decouples n Has connections whose signals in amplitude and frequency are essentially the same to a non-adaptive antenna device customized. This creates another production line avoided for base stations that are specifically for operation a non-adaptive antenna would have to be developed.
  • the base station 1 shows an arrangement for a mobile radio system with a base station 1 and an adaptive antenna device 10 according to the prior art.
  • the base station 1 includes a digital signal control device 2, a device for signal conversion 3 and n decoupled connections P1, P2, ..., Pn.
  • the adaptive antenna device 10 contains n individual antennas 9.
  • the digital signal control device 2 divides a digital signal SF to be transmitted into n essentially the same in amplitude and frequency, but in terms of their phase position different digital individual signals S1, S2,..., Sn and forms them from these n individual signals S1, S2, ..., Sn a received sum signal SR with a uniform phase position.
  • the device for signal conversion 3 forms a total of n analog, carrier-frequency radio signals RF1, RF2, ..., RFn for the n interconnected connections P1, P2, ... from the n digital individual signals S1, S2, ..., Sn of the signal control device 2. ., Pn of the base station 1 and vice versa.
  • the n analog carrier frequency radio signals RF1, RF2, ..., RFn are each on a single antenna 9 of the adaptive antenna device 10 given and shape by their phase relationship a sum radiation diagram with spatial preferred direction.
  • N analog, carrier-frequency radio signals RF1, RF2, ..., RFn, which reach the n decoupled connections P1, P2, ..., PN of the base station 1 already described in connection with FIG. 1, are transmitted by the device 4 linked to each other for merging or splitting in such a way that a sum signal SumS occurs at one of the connections M2 of the device 4 with a uniform phase position and reaches the antenna device 5 as an antenna signal AntS.
  • the antenna signal AntS of the antenna device 5 which reaches the device 4 as a sum signal SumS with a uniform phase position for summarizing or splitting, into which the radio signals RF1, RF2,. .., RFn divided, which then arrive at the n connections P1, P2, ..., PN of the base station 1.
  • the device 4 for merging advantageously exists or division from a Butler matrix 6 with n connections N1, N2, ..., Nn for the radio signals RF1, RF2, ..., RFn of base station 1 and m connections M1, M2, ..., Mn for Antenna signals AntS or sum signals SumS, the sum signal SumS or the antenna signal AntS to only one of the m connections M2 arrives and all other connections M1, ..., Mm each terminated with a terminating resistor 7 are.
  • the radio signals RF1, RF2, ..., RFn an essentially linearly increasing one with the other Phase position.
  • the antenna signal AntS is transmitted via the antenna device 5, which only contains one connection. It can the antenna device 5 both as a single antenna and can be realized as a group antenna.
  • FIG. 3 shows an arrangement for a mobile radio system with a base station 11, which is a digital signal control device 12, a device for signal conversion 13 and n includes decoupled connections P1, P2, ..., Pn, with an antenna device 5 and with a device 14 for merging or dividing into a second preferred embodiment according to the invention.
  • the digital signal control device 12 divides a digital signal SF to be transmitted into n essentially identical digital individual signals Si in terms of amplitude and frequency as well as in their phase position and forms a received sum signal SR with uniform phase position from these n individual signals Si.
  • the device for signal conversion 13 forms a total of n analog, carrier-frequency radio signals RFi for the n decoupled connections P1, P2, ..., Pn of the base station 11 and vice versa from the n individual signals Si of the signal control device 12.
  • the sum signal SumS with a uniform phase position to the device 14 for summary or division gets into the n in frequency, amplitude and phase position divided essentially the same radio signals RFi that get to the n connections P1, P2, ..., PN of the base station 11.
  • the device 14 for merging or split at least one Wilkinson combiner 8, with the help of which two signals are combined become.
  • the device for signal conversion 13 forms with the help of a Digital / analog converter, a mixing device and one Modulation device from the n individual signals Si of the signal control device n analog, carrier-frequency radio signals RFi and vice versa.
  • the antenna signal AntS is transmitted via the antenna device 5, which contains only one connection PAnt.
  • the antenna device both as a single antenna can also be implemented as a group antenna.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
EP01103432A 2001-02-14 2001-02-14 Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne Withdrawn EP1233542A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01103432A EP1233542A1 (fr) 2001-02-14 2001-02-14 Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne
CN02104673.5A CN1213550C (zh) 2001-02-14 2002-02-10 用于具有基站和天线装置的移动无线系统的电路装置
US10/074,252 US6826415B2 (en) 2001-02-14 2002-02-14 System for a mobile radio system having a base station and an antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01103432A EP1233542A1 (fr) 2001-02-14 2001-02-14 Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne

Publications (1)

Publication Number Publication Date
EP1233542A1 true EP1233542A1 (fr) 2002-08-21

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EP01103432A Withdrawn EP1233542A1 (fr) 2001-02-14 2001-02-14 Circuit pour un système mobile radio avec une station de base et un dispositif d'antenne

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3082273A1 (fr) * 2015-04-18 2016-10-19 Airbus DS Electronics and Border Security GmbH Procédé et dispositif de réduction de signaux parasites corrélés dans des systèmes de réception multi-canaux à formation de faisceau numérique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997028615A1 (fr) * 1996-01-29 1997-08-07 Ericsson Inc. Procede relatif a des stations de base de radiotelephone cellulaire utilisant une reception selectionnee en diversite et appareil correspondant
DE19820460A1 (de) * 1998-05-07 1999-12-09 Siemens Ag Mobilfunk-Basisstation mit adaptiver Antenne
WO2000067343A1 (fr) * 1999-04-30 2000-11-09 Metawave Communications Corporation Systeme et procede d'alignement de signaux ayant des phases differentes
EP1069706A1 (fr) * 1999-06-23 2001-01-17 Texas Instruments Inc. Appareil de communication radio muni d'une antenne à faisceau directionnel orientable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997028615A1 (fr) * 1996-01-29 1997-08-07 Ericsson Inc. Procede relatif a des stations de base de radiotelephone cellulaire utilisant une reception selectionnee en diversite et appareil correspondant
DE19820460A1 (de) * 1998-05-07 1999-12-09 Siemens Ag Mobilfunk-Basisstation mit adaptiver Antenne
WO2000067343A1 (fr) * 1999-04-30 2000-11-09 Metawave Communications Corporation Systeme et procede d'alignement de signaux ayant des phases differentes
EP1069706A1 (fr) * 1999-06-23 2001-01-17 Texas Instruments Inc. Appareil de communication radio muni d'une antenne à faisceau directionnel orientable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GODARA L C: "APPLICATIONS OF ANTENNA ARRAYS TO MOBILE COMMUNICATIONS, PART I: PERFORMANCE IMPROVEMENT, FEASIBILITY, AND SYSTEM CONSIDERATIONS", PROCEEDINGS OF THE IEEE,IEEE. NEW YORK,US, vol. 85, no. 7, 1 July 1997 (1997-07-01), pages 1031 - 1060, XP000735330, ISSN: 0018-9219 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3082273A1 (fr) * 2015-04-18 2016-10-19 Airbus DS Electronics and Border Security GmbH Procédé et dispositif de réduction de signaux parasites corrélés dans des systèmes de réception multi-canaux à formation de faisceau numérique

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